Tardis safe violates the laws of physics

I can almost read the newspaper headlines now; "Tardis discovered in Cambridge"; "Doctor Who mystery in UK town"; "Physics no longer Safe". Alas they won't be written about the Arundel House Hotel's security devices, which while magical to a naive mind (like mine) don't actually bend the space-time continuum like Father Christmas.

Now this was very difficult to photograph, but what these images show is that the cupboard has a certain depth (about 20cm), but the safe inside the cupboard has a greater internal depth (about 30cm). It's the strangest visual effect, but the safe looks bigger on the inside than the outside. It turns out that the safe is mounted, through the back of the cupboard, into the wall behind. The craftsmanship is seamless!